Appetite and Energy Intake Responses to Acute Energy Deficits in Females versus Males
Appetite and Energy Intake Responses to Acute Energy Deficits in Females versus Males
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DOI：
10.1249/mss.0000000000000793
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发表时间：
2016-03-01
期刊：
影响因子：
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通讯作者：
Stensel, David J.
中科院分区：
文献类型：
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作者：
Alajmi, Nawal;Deighton, Kevin;Stensel, David J.
PurposeTo探讨是否代偿反应急性能源赤字引起的运动或饮食dedicated by sexy.MethodsIn实验一，12名健康女性完成了3个9小时的试验（对照，运动诱导（前Def）和食物限制引起的能源赤字（食物Def））与相同的能源赤字被强加在前Def（90分钟运行，类似于70%的VO 2 max）和食物Def试验。在实验二中，10名男性和10名女性完成了两个7小时的试验（控制和运动）。在运动试验开始时进行60分钟的跑步（类似于VO 2 max的70%）。参与者在运动试验的剩余时间和对照试验期间休息。在主要试验期间评估了食欲评级、肠道激素的血浆浓度和随意能量摄入量。结果在实验一中，通过食物限制诱导的约3500 kJ的能量赤字增加了食欲和食物摄入量。这些变化与血浆酰化生长素释放肽浓度升高和肽YY 3 -36降低相对应。这些代偿反应都不明显时，一个等效的能量不足引起的运动。在实验二中，食欲等级和血浆酰化ghrelin浓度在运动中低于对照组，但能量摄入在试验之间没有差异。食欲，酰化ghrelin，和能量摄入量的反应，运动没有不同的男性和women.ConclusionsWomen表现出代偿性食欲，肠道激素，和食物摄入量的反应，急性能量限制，但不响应于一个急性回合的运动。此外，男性和女性似乎表现出类似的酰化ghrelin和PYY 3 -36对运动诱导的能量不足的反应。这些发现促进了对女性运动和能量平衡之间相互作用的理解。
PurposeTo explore whether compensatory responses to acute energy deficits induced by exercise or diet differ by sex.MethodsIn experiment one, 12 healthy women completed three 9-h trials (control, exercise-induced (Ex-Def) and food restriction-induced energy deficit (Food-Def)) with identical energy deficits being imposed in the Ex-Def (90-min run, similar to 70% of VO2max) and Food-Def trials. In experiment two, 10 men and 10 women completed two 7-h trials (control and exercise). Sixty minutes of running (similar to 70% of VO2max) was performed at the beginning of the exercise trial. The participants rested throughout the remainder of the exercise trial and during the control trial. Appetite ratings, plasma concentrations of gut hormones, and ad libitum energy intake were assessed during main trials.ResultsIn experiment one, an energy deficit of approximately 3500 kJ induced via food restriction increased appetite and food intake. These changes corresponded with heightened concentrations of plasma acylated ghrelin and lower peptide YY3-36. None of these compensatory responses were apparent when an equivalent energy deficit was induced by exercise. In experiment two, appetite ratings and plasma acylated ghrelin concentrations were lower in exercise than in control, but energy intake did not differ between trials. The appetite, acylated ghrelin, and energy intake response to exercise did not differ between men and women.ConclusionsWomen exhibit compensatory appetite, gut hormone, and food intake responses to acute energy restriction but not in response to an acute bout of exercise. Additionally, men and women seem to exhibit similar acylated ghrelin and PYY3-36 responses to exercise-induced energy deficits. These findings advance understanding regarding the interaction between exercise and energy homeostasis in women.